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A-TECH free pcb surface finish free delivery at discount

A-TECH free pcb surface finish free delivery at discount

Thickness
1-40um
Shelf Life
12 Months
Solderability
Good
RoHS Compliant
Yes
Additional Cost
No
Supply Capacity
20000 ㎡/Month
Certifications
UL, ISO9001, TS16949
Payment Terms
T/T, Paypal, WU etc.
Shipment Terms
EXW, FOB, DDU etc.
Test Way
100% E-Test
Standard
IPC CLASS 2 / CLASS 3
Price
Get Latest Price
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Quantity Needed:
Pieces
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HAL(Lead Free), the full name is Hot Air leveling with Lead Free. Compared with HASL, the main difference for HAL(Lead Free) is the element of material which do not contain Lead(Pb), so it’s RoHS Compliant and it’s much more popular and widely used in PCB manufacturing.

HAL(Lead Free) requires higher run temperatures for lead free solder and longer contact time, the production cost for HAL(Lead Free) is slightly higher than HASL(Tin/Lead).

The manufacturing process of HAL(Lead Free) is similar to HASL(Tin/Lead), the circuit boards will be submersed in molten solder(Lead Free). This solder will cover all the exposed copper surfaces. Upon retraction from the solder, high pressure hot air is blown over the surface through air knives, this levels the solder deposit and removes the excess solder from the surface of printed circuit boards.

The typical thickness of HAL(Lead Free) is 1-40um and the shelf life is 12 months.



The advantages of HAL(Lead Free) surface finish

● Good solderability / wettability
● RoHS Compliant
● Good reflow properties
● Large processing window is allowed
● Multiple thermal excursions
● Can be widely used



The disadvantages of HAL(Lead Free) surface finish

● Uneven surface
● Not suitable for PCBs with fine pitch
● Thermal shock
● Solder bridge
● Plugged or Reduced plated through holes



A-TECH have HAL(Lead Free) surface finish in house, It’s basically the highest proportion of finish used for circuit boards without fine pitch or high density layout. We don’t have any additional cost for HAL(Lead Free) surface finish.




The design of A-TECH pcb surface finish is market-based. It is carefully designed based on dimensions, weight, and characteristics of the product to be packed. The adopted materials are all harmless which do no harm to human body
The printing process of A-TECH immersion tin pcb finish is constantly monitored by special personnel to ensure that it can present a satisfying visual effect. Established in 2014, Foshan Polyva materials CO., Ltd. specializes in development, manufacture and supply of water soluble PVA film
A-TECH immersion tin pcb finish is carried out by adopting the packaging and printing method which is flexible in its use of color and has the capacity to print on a vast array of materials. Fast delivery can be guaranteed
Concerning the design of A-TECH immersion tin pcb finish, it always uses the updated design concept and follows the ongoing CAD design trend. Fast delivery can be guaranteed
The design process of A-TECH pcb surface finish is greatly enhanced. Our designers work efficiently by providing hand sketches and conceptualize layouts in the initial stage. Our laundry pods packing machine has been qualified with CE certificate
From design, purchase to production, each staff in A-TECH controls the quality according to the crafts specification. Our film has good flexibility, the effective isolation of various substances and rapid dissolution of water
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